Union Circuits has a professional sourcing team responsible for the components procurement and parts management. You just need to send us the BOM with all the specifications of the PCB and Gerber data, the others leave to us, we will source the best electronic components from high quality vendors and global distributors. Components will be procured based on customer’s authorized suppliers and manufacturers. We have established a strong relationship with some major electronic components distributors like Digi-Key, Mouser, Farnell, Future etc... We handle the entire logistics of the parts and materials, and manage the procurement systems.Quick Review of Union Circuits PCB Assembly Services:· PCB Fabrication· Prototype PCB Assembly· Full or Partial Turnkey Assembly· Components Sourcing· SMT & Through Hole Assembly(0402 & 0201)· QFN & BGA Assembly· AOI Testing· Cable & Wire Harness Assembly· Box Build· IC Programming· Component Procurement & Kitting· Functional Testing· Material Inventory Management· Parts Incoming Check· Electrical Characteristics AnalysisPlease send your Gerber with all the specs and BOM to sales@unitpcb.com for a quick quote. http://www.unioncircuits.com/pc...components-sourcing.html